On 21/12/2020 06:07, Nuo Mi wrote:
---
libavcodec/Makefile | 1 +
libavcodec/cbs.c | 6 +
libavcodec/cbs_h2645.c | 337 ++++++
libavcodec/cbs_h266.h | 711 ++++++++++++
libavcodec/cbs_h266_syntax_template.c | 1493 +++++++++++++++++++++++++
libavcodec/cbs_internal.h | 1 +
6 files changed, 2549 insertions(+)
create mode 100644 libavcodec/cbs_h266.h
create mode 100644 libavcodec/cbs_h266_syntax_template.c
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 450781886d..4045c002b7 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -73,6 +73,7 @@ OBJS-$(CONFIG_CBS) += cbs.o
OBJS-$(CONFIG_CBS_AV1) += cbs_av1.o
OBJS-$(CONFIG_CBS_H264) += cbs_h2645.o h2645_parse.o
OBJS-$(CONFIG_CBS_H265) += cbs_h2645.o h2645_parse.o
+OBJS-$(CONFIG_CBS_H266) += cbs_h2645.o h2645_parse.o
OBJS-$(CONFIG_CBS_JPEG) += cbs_jpeg.o
OBJS-$(CONFIG_CBS_MPEG2) += cbs_mpeg2.o
OBJS-$(CONFIG_CBS_VP9) += cbs_vp9.o
diff --git a/libavcodec/cbs.c b/libavcodec/cbs.c
index f98531e131..2b4f3b2bea 100644
--- a/libavcodec/cbs.c
+++ b/libavcodec/cbs.c
@@ -38,6 +38,9 @@ static const CodedBitstreamType *cbs_type_table[] = {
#if CONFIG_CBS_H265
&ff_cbs_type_h265,
#endif
+#if CONFIG_CBS_H266
+ &ff_cbs_type_h266,
+#endif
#if CONFIG_CBS_JPEG
&ff_cbs_type_jpeg,
#endif
@@ -59,6 +62,9 @@ const enum AVCodecID ff_cbs_all_codec_ids[] = {
#if CONFIG_CBS_H265
AV_CODEC_ID_H265,
#endif
+#if CONFIG_CBS_H266
+ AV_CODEC_ID_H266,
+#endif
#if CONFIG_CBS_JPEG
AV_CODEC_ID_MJPEG,
#endif
diff --git a/libavcodec/cbs_h2645.c b/libavcodec/cbs_h2645.c
index 434322492c..0b884c1ed0 100644
--- a/libavcodec/cbs_h2645.c
+++ b/libavcodec/cbs_h2645.c
@@ -24,11 +24,13 @@
#include "cbs_internal.h"
#include "cbs_h264.h"
#include "cbs_h265.h"
+#include "cbs_h266.h"
#include "h264.h"
#include "h264_sei.h"
#include "h2645_parse.h"
#include "hevc.h"
#include "hevc_sei.h"
+#include "h266.h"
static int cbs_read_ue_golomb(CodedBitstreamContext *ctx, GetBitContext *gbc,
@@ -256,6 +258,7 @@ static int cbs_h265_payload_extension_present(GetBitContext
*gbc, uint32_t paylo
#define FUNC_NAME(rw, codec, name) cbs_ ## codec ## _ ## rw ## _ ## name
#define FUNC_H264(rw, name) FUNC_NAME(rw, h264, name)
#define FUNC_H265(rw, name) FUNC_NAME(rw, h265, name)
+#define FUNC_H266(rw, name) FUNC_NAME(rw, h266, name)
#define SUBSCRIPTS(subs, ...) (subs > 0 ? ((int[subs + 1]){ subs, __VA_ARGS__ }) : NULL)
@@ -364,6 +367,10 @@ static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
#include "cbs_h265_syntax_template.c"
#undef FUNC
+#define FUNC(name) FUNC_H266(READWRITE, name)
+#include "cbs_h266_syntax_template.c"
+#undef FUNC
+
#undef READ
#undef READWRITE
#undef RWContext
Please include the second time for write support as well. (With only read this
is incredibly hard to test.)
@@ -679,6 +686,9 @@ cbs_h2645_replace_ps(4, PPS, pps, pic_parameter_set_id)
cbs_h2645_replace_ps(5, VPS, vps, vps_video_parameter_set_id)
cbs_h2645_replace_ps(5, SPS, sps, sps_seq_parameter_set_id)
cbs_h2645_replace_ps(5, PPS, pps, pps_pic_parameter_set_id)
+cbs_h2645_replace_ps(6, VPS, vps, vps_video_parameter_set_id)
+cbs_h2645_replace_ps(6, SPS, sps, sps_seq_parameter_set_id)
+cbs_h2645_replace_ps(6, PPS, pps, pps_pic_parameter_set_id)
static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
CodedBitstreamUnit *unit)
@@ -920,6 +930,117 @@ static int cbs_h265_read_nal_unit(CodedBitstreamContext
*ctx,
return 0;
}
+static int cbs_h266_read_nal_unit(CodedBitstreamContext *ctx,
+ CodedBitstreamUnit *unit)
+{
+ GetBitContext gbc;
+ int err;
+
+ err = init_get_bits(&gbc, unit->data, 8 * unit->data_size);
init_get_bits8()
+ if (err < 0)
+ return err;
+
+ err = ff_cbs_alloc_unit_content2(ctx, unit);
+ if (err < 0)
+ return err;
+
+ switch (unit->type) {
+ case H266_NAL_VPS:
+ {
+ H266RawVPS *vps = unit->content;
+
+ err = cbs_h266_read_vps(ctx, &gbc, vps);
This isn't implemented, so don't include it here so it returns ENOSYS.
+ if (err < 0)
+ return err;
+
+ err = cbs_h266_replace_vps(ctx, unit);
+ if (err < 0)
+ return err;
+ }
+ break;
+ case H266_NAL_SPS:
+ {
+ H266RawSPS *sps = unit->content;
+
+ err = cbs_h266_read_sps(ctx, &gbc, sps);
+ if (err < 0)
+ return err;
+
+ err = cbs_h266_replace_sps(ctx, unit);
+ if (err < 0)
+ return err;
+ }
+ break;
+
+ case H266_NAL_PPS:
+ {
+ H266RawPPS *pps = unit->content;
+
+ err = cbs_h266_read_pps(ctx, &gbc, pps);
+ if (err < 0)
+ return err;
+
+ err = cbs_h266_replace_pps(ctx, unit);
+ if (err < 0)
+ return err;
+ }
+ break;
+
+ case H266_NAL_TRAIL:
+ case H266_NAL_STSA:
+ case H266_NAL_RADL:
Missing case H266_NUT_RASL.
+ case H266_NAL_IDR_W_RADL:
+ case H266_NAL_IDR_N_LP:
+ case H266_NAL_CRA_NUT:
+ case H266_NAL_GDR_NUT:
+ {
+ H266RawSlice *slice = unit->content;
+ int pos, len;
+
+ err = cbs_h266_read_slice_header(ctx, &gbc, &slice->header);
+ if (err < 0)
+ return err;
+
+ if (!cbs_h2645_read_more_rbsp_data(&gbc))
+ return AVERROR_INVALIDDATA;
+
+ pos = get_bits_count(&gbc);
+ len = unit->data_size;
+
+ slice->data_size = len - pos / 8;
+ slice->data_ref = av_buffer_ref(unit->data_ref);
+ if (!slice->data_ref)
+ return AVERROR(ENOMEM);
+ slice->data = unit->data + pos / 8;
+ slice->data_bit_start = pos % 8;
+ }
+ break;
+
+ case H266_NAL_AUD:
+ {
+ err = cbs_h266_read_aud(ctx, &gbc, unit->content);
+ if (err < 0)
+ return err;
+ }
+ break;
+
+ case H266_NAL_PREFIX_SEI:
+ case H266_NAL_SUFFIX_SEI:
+ {
+ err = cbs_h266_read_sei(ctx, &gbc, unit->content,
+ unit->type == H266_NAL_PREFIX_SEI);
+
+ if (err < 0)
+ return err;
+ }
+ break;
Don't include SEI at all given that you haven't implemented it; just let it
return ENOSYS.
+
+ default:
+ return AVERROR(ENOSYS);
+ }
+ return 0;
+}
+
static int cbs_h2645_write_slice_data(CodedBitstreamContext *ctx,
PutBitContext *pbc, const uint8_t *data,
size_t data_size, int data_bit_start)
@@ -1207,6 +1328,120 @@ static int
cbs_h265_write_nal_unit(CodedBitstreamContext *ctx,
return 0;
}
+static int cbs_h266_write_nal_unit(CodedBitstreamContext *ctx,
+ CodedBitstreamUnit *unit,
+ PutBitContext *pbc)
+{
+ printf("TODO: cbs_h266_write_nal_unit");
Yes.
+#if 0
+ int err;
+
+ switch (unit->type) {
+ case HEVC_NAL_VPS:
+ {
+ H265RawVPS *vps = unit->content;
+
+ err = cbs_h265_write_vps(ctx, pbc, vps);
+ if (err < 0)
+ return err;
+
+ err = cbs_h265_replace_vps(ctx, unit);
+ if (err < 0)
+ return err;
+ }
+ break;
+
+ case HEVC_NAL_SPS:
+ {
+ H265RawSPS *sps = unit->content;
+
+ err = cbs_h265_write_sps(ctx, pbc, sps);
+ if (err < 0)
+ return err;
+
+ err = cbs_h265_replace_sps(ctx, unit);
+ if (err < 0)
+ return err;
+ }
+ break;
+
+ case HEVC_NAL_PPS:
+ {
+ H265RawPPS *pps = unit->content;
+
+ err = cbs_h265_write_pps(ctx, pbc, pps);
+ if (err < 0)
+ return err;
+
+ err = cbs_h265_replace_pps(ctx, unit);
+ if (err < 0)
+ return err;
+ }
+ break;
+
+ case HEVC_NAL_TRAIL_N:
+ case HEVC_NAL_TRAIL_R:
+ case HEVC_NAL_TSA_N:
+ case HEVC_NAL_TSA_R:
+ case HEVC_NAL_STSA_N:
+ case HEVC_NAL_STSA_R:
+ case HEVC_NAL_RADL_N:
+ case HEVC_NAL_RADL_R:
+ case HEVC_NAL_RASL_N:
+ case HEVC_NAL_RASL_R:
+ case HEVC_NAL_BLA_W_LP:
+ case HEVC_NAL_BLA_W_RADL:
+ case HEVC_NAL_BLA_N_LP:
+ case HEVC_NAL_IDR_W_RADL:
+ case HEVC_NAL_IDR_N_LP:
+ case HEVC_NAL_CRA_NUT:
+ {
+ H265RawSlice *slice = unit->content;
+
+ err = cbs_h265_write_slice_segment_header(ctx, pbc,
&slice->header);
+ if (err < 0)
+ return err;
+
+ if (slice->data) {
+ err = cbs_h2645_write_slice_data(ctx, pbc, slice->data,
+ slice->data_size,
+ slice->data_bit_start);
+ if (err < 0)
+ return err;
+ } else {
+ // No slice data - that was just the header.
+ }
+ }
+ break;
+
+ case HEVC_NAL_AUD:
+ {
+ err = cbs_h265_write_aud(ctx, pbc, unit->content);
+ if (err < 0)
+ return err;
+ }
+ break;
+
+ case HEVC_NAL_SEI_PREFIX:
+ case HEVC_NAL_SEI_SUFFIX:
+ {
+ err = cbs_h265_write_sei(ctx, pbc, unit->content,
+ unit->type == HEVC_NAL_SEI_PREFIX);
+
+ if (err < 0)
+ return err;
+ }
+ break;
+
+ default:
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "Write unimplemented for "
+ "NAL unit type %"PRIu32".\n", unit->type);
+ return AVERROR_PATCHWELCOME;
+ }
+#endif
+ return 0;
+}
+
static int cbs_h2645_assemble_fragment(CodedBitstreamContext *ctx,
CodedBitstreamFragment *frag)
{
@@ -1362,6 +1597,43 @@ static void cbs_h265_close(CodedBitstreamContext *ctx)
av_buffer_unref(&h265->pps_ref[i]);
}
+static void cbs_h266_flush(CodedBitstreamContext *ctx)
+{
+ CodedBitstreamH266Context *h266 = ctx->priv_data;
+
+ for (int i = 0; i < FF_ARRAY_ELEMS(h266->vps); i++) {
+ av_buffer_unref(&h266->vps_ref[i]);
+ h266->vps[i] = NULL;
+ }
+ for (int i = 0; i < FF_ARRAY_ELEMS(h266->sps); i++) {
+ av_buffer_unref(&h266->sps_ref[i]);
+ h266->sps[i] = NULL;
+ }
+ for (int i = 0; i < FF_ARRAY_ELEMS(h266->pps); i++) {
+ av_buffer_unref(&h266->pps_ref[i]);
+ h266->pps[i] = NULL;
+ }
+
+ h266->active_vps = NULL;
+ h266->active_sps = NULL;
+ h266->active_pps = NULL;
+}
+
+static void cbs_h266_close(CodedBitstreamContext *ctx)
+{
+ CodedBitstreamH266Context *h266 = ctx->priv_data;
+ int i;
+
+ ff_h2645_packet_uninit(&h266->common.read_packet);
+
+ for (i = 0; i < FF_ARRAY_ELEMS(h266->vps); i++)
+ av_buffer_unref(&h266->vps_ref[i]);
+ for (i = 0; i < FF_ARRAY_ELEMS(h266->sps); i++)
+ av_buffer_unref(&h266->sps_ref[i]);
+ for (i = 0; i < FF_ARRAY_ELEMS(h266->pps); i++)
+ av_buffer_unref(&h266->pps_ref[i]);
These loops look like exactly what flush does.
+}
+
static void cbs_h264_free_sei_payload(H264RawSEIPayload *payload)
{
switch (payload->payload_type) {
@@ -1506,6 +1778,55 @@ static const CodedBitstreamUnitTypeDescriptor
cbs_h265_unit_types[] = {
CBS_UNIT_TYPE_END_OF_LIST
};
+static void cbs_h266_free_sei(void *opaque, uint8_t *content)
+{
+}
+
+static const CodedBitstreamUnitTypeDescriptor cbs_h266_unit_types[] = {
+ CBS_UNIT_TYPE_INTERNAL_REF(H266_NAL_VPS, H266RawVPS, extension_data.data),
+ CBS_UNIT_TYPE_INTERNAL_REF(H266_NAL_SPS, H266RawSPS, extension_data.data),
+ CBS_UNIT_TYPE_INTERNAL_REF(H266_NAL_PPS, H266RawPPS, extension_data.data),
+
+ CBS_UNIT_TYPE_POD(H266_NAL_AUD, H266RawAUD),
+
+ {
+ // Slices of non-IRAP pictures.
+ .nb_unit_types = CBS_UNIT_TYPE_RANGE,
+ .unit_type_range_start = H266_NAL_TRAIL,
+ .unit_type_range_end = H266_NAL_RASL,
Using the list form would probably be clearer - there isn't the proliferation
of extra types like H.265.
+
+ .content_type = CBS_CONTENT_TYPE_INTERNAL_REFS,
+ .content_size = sizeof(H266RawSlice),
+ .nb_ref_offsets = 1,
+ .ref_offsets = { offsetof(H266RawSlice, data) },
+ },
+
+ {
+ // Slices of IRAP pictures.
+ .nb_unit_types = CBS_UNIT_TYPE_RANGE,
+ .unit_type_range_start = H266_NAL_IDR_W_RADL,
+ .unit_type_range_end = H266_NAL_GDR_NUT,
Likewise here.
+
+ .content_type = CBS_CONTENT_TYPE_INTERNAL_REFS,
+ .content_size = sizeof(H266RawSlice),
+ .nb_ref_offsets = 1,
+ .ref_offsets = { offsetof(H266RawSlice, data) },
+ },
+
+ {
+ .nb_unit_types = 2,
+ .unit_types = {
+ H266_NAL_PREFIX_SEI,
+ H266_NAL_SUFFIX_SEI
+ },
+ .content_type = CBS_CONTENT_TYPE_COMPLEX,
+ .content_size = sizeof(H266RawSEI),
+ .content_free = &cbs_h266_free_sei,
+ },
Don't include these if you didn't implement them.
+
+ CBS_UNIT_TYPE_END_OF_LIST
+};
+
const CodedBitstreamType ff_cbs_type_h264 = {
.codec_id = AV_CODEC_ID_H264,
@@ -1538,6 +1859,22 @@ const CodedBitstreamType ff_cbs_type_h265 = {
.close = &cbs_h265_close,
};
+const CodedBitstreamType ff_cbs_type_h266 = {
+ .codec_id = AV_CODEC_ID_VVC,
+
+ .priv_data_size = sizeof(CodedBitstreamH266Context),
+
+ .unit_types = cbs_h266_unit_types,
+
+ .split_fragment = &cbs_h2645_split_fragment,
+ .read_unit = &cbs_h266_read_nal_unit,
+ .write_unit = &cbs_h266_write_nal_unit,
+ .assemble_fragment = &cbs_h2645_assemble_fragment,
+
+ .flush = &cbs_h266_flush,
+ .close = &cbs_h266_close,
+};
+
int ff_cbs_h264_add_sei_message(CodedBitstreamFragment *au,
H264RawSEIPayload *payload)
{
diff --git a/libavcodec/cbs_h266.h b/libavcodec/cbs_h266.h
new file mode 100644
index 0000000000..91d6ef4f9e
--- /dev/null
+++ b/libavcodec/cbs_h266.h
@@ -0,0 +1,711 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_CBS_H266_H
+#define AVCODEC_CBS_H266_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "cbs_h2645.h"
+#include "h266.h"
+
+enum {
+ // This limit is arbitrary - it is sufficient for one message of each
+ // type plus some repeats, and will therefore easily cover all sane
+ // streams. However, it is possible to make technically-valid streams
+ // for which it will fail (for example, by including a large number of
+ // user-data-unregistered messages).
+ H266_MAX_SEI_PAYLOADS = 64,
+};
+
In this file, please horizontally align things to improve readability. In
particular, the starts of all normal variables and all the matching arrays
would help quite a bit.
+typedef struct H266RawNALUnitHeader {
+ uint8_t nuh_layer_id;
+ uint8_t nal_unit_type;
+ uint8_t nuh_temporal_id_plus1;
+} H266RawNALUnitHeader;
+
+typedef struct H266GeneralConstraintsInfo {
+ uint8_t gci_present_flag;
+} H266GeneralConstraintsInfo;
+
+typedef struct H266RawProfileTierLevel {
+ uint8_t general_profile_idc;
+ uint8_t general_tier_flag;
+ uint8_t general_level_idc;
+ uint8_t ptl_frame_only_constraint_flag;
+ uint8_t ptl_multilayer_enabled_flag;
+ H266GeneralConstraintsInfo general_constraints_info;
+ uint8_t ptl_sublayer_level_present_flag[H266_MAX_SUB_LAYERS - 1];
That constant should be renamed to H266_MAX_SUBLAYERS, the standard never uses
a space between them.
+ uint8_t sublayer_level_idc[H266_MAX_SUB_LAYERS - 1];
+ uint8_t ptl_num_sub_profiles;
+ uint32_t general_sub_profile_idc[256];
I think add an H266_MAX_SUB_PROFILES for this size.
+} H266RawProfileTierLevel;
+
+typedef struct H266RawExtensionData {
+ uint8_t *data;
+ AVBufferRef *data_ref;
+ size_t bit_length;
+} H266RawExtensionData;
+
+typedef struct H266DpbParameters {
+ uint8_t dpb_max_dec_pic_buffering_minus1[H266_MAX_SUB_LAYERS];
+ uint8_t dpb_max_num_reorder_pics[H266_MAX_SUB_LAYERS];
+ uint8_t dpb_max_latency_increase_plus1[H266_MAX_SUB_LAYERS];
+} H266DpbParameters;
+
+typedef struct H266RawVPS {
+ H266RawNALUnitHeader nal_unit_header;
+
+ uint8_t vps_video_parameter_set_id;
+
+ uint8_t vps_max_layers_minus1;
+ uint8_t vps_max_sublayers_minus1;
+ /*TODO add more*/
+ H266RawExtensionData extension_data;
+} H266RawVPS;
+//
+typedef struct H266RefPicListStruct {
+ uint8_t num_ref_entries;
+ uint8_t ltrp_in_header_flag;
+ uint8_t inter_layer_ref_pic_flag[H266_MAX_DPB_SIZE + 13];
+ uint8_t st_ref_pic_flag[H266_MAX_DPB_SIZE + 13];
+ uint8_t abs_delta_poc_st[H266_MAX_DPB_SIZE + 13];
+ uint8_t strp_entry_sign_flag[H266_MAX_DPB_SIZE + 13];
+ uint8_t rpls_poc_lsb_lt[H266_MAX_DPB_SIZE + 13];
+ uint8_t ilrp_idx[H266_MAX_DPB_SIZE + 13];
+
+ //calculated values;
+ uint8_t num_ltrp_entries;
Derived values really shouldn't be in the bitstream struct if it can be
avoided. In this case, it's calculated and used inline so you don't need to
store it here.
+} H266RefPicListStruct;
+
+typedef struct H266RefPicLists {
+ uint8_t rpl_sps_flag[2];
+ uint8_t rpl_idx[2];
+ H266RefPicListStruct rpl_ref_list[2];
+ uint16_t poc_lsb_lt[2][H266_MAX_DPB_SIZE + 13];
+ uint8_t delta_poc_msb_cycle_present_flag[2][H266_MAX_DPB_SIZE + 13];
+ uint16_t delta_poc_msb_cycle_lt[2][H266_MAX_DPB_SIZE + 13];
+} H266RefPicLists;
+
+typedef struct H266RawGeneralTimingHrdParameters {
+ uint32_t num_units_in_tick;
+ uint32_t time_scale;
+ uint8_t general_nal_hrd_params_present_flag;
+ uint8_t general_vcl_hrd_params_present_flag;
+ uint8_t general_same_pic_timing_in_all_ols_flag;
+ uint8_t general_du_hrd_params_present_flag;
+ uint8_t tick_divisor_minus2;
+ uint8_t bit_rate_scale;
+ uint8_t cpb_size_scale;
+ uint8_t cpb_size_du_scale;
+ uint8_t hrd_cpb_cnt_minus1;
+} H266RawGeneralTimingHrdParameters;
+
+typedef struct H266RawSubLayerHRDParameters {
+ uint32_t bit_rate_value_minus1[H266_MAX_CPB_CNT];
+ uint32_t cpb_size_value_minus1[H266_MAX_CPB_CNT];
+ uint32_t cpb_size_du_value_minus1[H266_MAX_CPB_CNT];
+ uint32_t bit_rate_du_value_minus1[H266_MAX_CPB_CNT];
+ uint8_t cbr_flag[H266_MAX_CPB_CNT];
+} H266RawSubLayerHRDParameters;
+
+typedef struct H266RawOlsTimingHrdParameters {
+ uint8_t fixed_pic_rate_general_flag[H266_MAX_SUB_LAYERS];
+ uint8_t fixed_pic_rate_within_cvs_flag[H266_MAX_SUB_LAYERS];
+ uint16_t elemental_duration_in_tc_minus1[H266_MAX_SUB_LAYERS];
+ uint8_t low_delay_hrd_flag[H266_MAX_SUB_LAYERS];
+ H266RawSubLayerHRDParameters
nal_sub_layer_hrd_parameters[H266_MAX_SUB_LAYERS];
+ H266RawSubLayerHRDParameters
vcl_sub_layer_hrd_parameters[H266_MAX_SUB_LAYERS];
+} H266RawOlsTimingHrdParameters;
+
+typedef struct H266RawVUI {
+ uint8_t vui_progressive_source_flag;
+ uint8_t vui_interlaced_source_flag;
+ uint8_t vui_non_packed_constraint_flag;
+ uint8_t vui_non_projected_constraint_flag;
+
+ uint8_t vui_aspect_ratio_info_present_flag;
+ uint8_t vui_aspect_ratio_constant_flag;
+ uint8_t vui_aspect_ratio_idc;
+
+ uint16_t vui_sar_width;
+ uint16_t vui_sar_height;;
+
+ uint8_t vui_overscan_info_present_flag;
+ uint8_t vui_overscan_appropriate_flag;
+
+ uint8_t vui_colour_description_present_flag;
+ uint8_t vui_colour_primaries;
+
+ uint8_t vui_transfer_characteristics;
+ uint8_t vui_matrix_coeffs;
+ uint8_t vui_full_range_flag;
+
+ uint8_t vui_chroma_loc_info_present_flag;
+ uint8_t vui_chroma_sample_loc_type_frame;
+ uint8_t vui_chroma_sample_loc_type_top_field;
+ uint8_t vui_chroma_sample_loc_type_bottom_field;
+} H266RawVUI;
+
+typedef struct H266RawSPS {
+ H266RawNALUnitHeader nal_unit_header;
+
+ uint8_t sps_seq_parameter_set_id;
+ uint8_t sps_video_parameter_set_id;
+ uint8_t sps_max_sublayers_minus1;
+ uint8_t sps_chroma_format_idc;
+ uint8_t sps_log2_ctu_size_minus5;
+ uint8_t sps_ptl_dpb_hrd_params_present_flag;
+ H266RawProfileTierLevel profile_tier_level;
+ uint8_t sps_gdr_enabled_flag;
+ uint8_t sps_ref_pic_resampling_enabled_flag;
+ uint8_t sps_res_change_in_clvs_allowed_flag;
+
+ uint16_t sps_pic_width_max_in_luma_samples;
+ uint16_t sps_pic_height_max_in_luma_samples;
+
+ uint8_t sps_conformance_window_flag;
+ uint16_t sps_conf_win_left_offset;
+ uint16_t sps_conf_win_right_offset;
+ uint16_t sps_conf_win_top_offset;
+ uint16_t sps_conf_win_bottom_offset;
+
+ uint8_t sps_subpic_info_present_flag;
+ uint8_t sps_num_subpics_minus1;
+ uint8_t sps_independent_subpics_flag;
+ uint8_t sps_subpic_same_size_flag;
+ uint8_t sps_subpic_id_len_minus1;
+ uint8_t sps_subpic_id_mapping_explicitly_signalled_flag;
+ uint8_t sps_subpic_id_mapping_present_flag;
+
+
+ uint8_t sps_bitdepth_minus8;
+ uint8_t sps_entropy_coding_sync_enabled_flag;
+ uint8_t sps_entry_point_offsets_present_flag;
+
+ uint8_t sps_log2_max_pic_order_cnt_lsb_minus4;
+ uint8_t sps_poc_msb_cycle_flag;
+ uint8_t sps_poc_msb_cycle_len_minus1;
+
+ uint8_t sps_num_extra_ph_bytes;
+ uint8_t sps_extra_ph_bit_present_flag[16];
+ uint8_t num_extra_ph_bits;
+
+ uint8_t sps_num_extra_sh_bytes;
+ uint8_t sps_extra_sh_bit_present_flag[16];
+ uint8_t num_extra_sh_bits;
+
+ uint8_t sps_sublayer_dpb_params_flag;
+ H266DpbParameters sps_dpb_params;
+
+ uint8_t sps_log2_min_luma_coding_block_size_minus2;
+ uint8_t sps_partition_constraints_override_enabled_flag;
+ uint8_t sps_log2_diff_min_qt_min_cb_intra_slice_luma;
+ uint8_t sps_max_mtt_hierarchy_depth_intra_slice_luma;
+ uint8_t sps_log2_diff_max_bt_min_qt_intra_slice_luma;
+ uint8_t sps_log2_diff_max_tt_min_qt_intra_slice_luma;
+
+ uint8_t sps_qtbtt_dual_tree_intra_flag;
+ uint8_t sps_log2_diff_min_qt_min_cb_intra_slice_chroma;
+ uint8_t sps_max_mtt_hierarchy_depth_intra_slice_chroma;
+ uint8_t sps_log2_diff_max_bt_min_qt_intra_slice_chroma;
+ uint8_t sps_log2_diff_max_tt_min_qt_intra_slice_chroma;
+
+ uint8_t sps_log2_diff_min_qt_min_cb_inter_slice;
+ uint8_t sps_max_mtt_hierarchy_depth_inter_slice;
+ uint8_t sps_log2_diff_max_bt_min_qt_inter_slice;
+ uint8_t sps_log2_diff_max_tt_min_qt_inter_slice;
+
+ uint8_t sps_max_luma_transform_size_64_flag;
+
+ uint8_t sps_transform_skip_enabled_flag;
+ uint8_t sps_log2_transform_skip_max_size_minus2;
+ uint8_t sps_bdpcm_enabled_flag;
+
+ uint8_t sps_mts_enabled_flag;
+ uint8_t sps_explicit_mts_intra_enabled_flag;
+ uint8_t sps_explicit_mts_inter_enabled_flag;
+
+ uint8_t sps_lfnst_enabled_flag;
+
+ uint8_t sps_joint_cbcr_enabled_flag;
+ uint8_t sps_same_qp_table_for_chroma_flag;
+
+ int8_t sps_qp_table_start_minus26[H266_MAX_PLANES];
+ uint8_t sps_num_points_in_qp_table_minus1[H266_MAX_PLANES];
+ uint8_t
sps_delta_qp_in_val_minus1[H266_MAX_PLANES][H266_MAX_POINTS_IN_QP_TABLE];
+ uint8_t
sps_delta_qp_diff_val[H266_MAX_PLANES][H266_MAX_POINTS_IN_QP_TABLE];
+
+ uint8_t sps_sao_enabled_flag;
+ uint8_t sps_alf_enabled_flag;
+ uint8_t sps_ccalf_enabled_flag;
+ uint8_t sps_lmcs_enabled_flag;
+ uint8_t sps_weighted_pred_flag;
+ uint8_t sps_weighted_bipred_flag;
+ uint8_t sps_long_term_ref_pics_flag;
+ uint8_t sps_inter_layer_prediction_enabled_flag;
+ uint8_t sps_idr_rpl_present_flag;
+ uint8_t sps_rpl1_same_as_rpl0_flag;
+
+ uint8_t sps_num_ref_pic_lists[2];
+ H266RefPicListStruct sps_ref_pic_list_struct[2][H266_MAX_REF_PIC_LISTS];
+
+ uint8_t sps_ref_wraparound_enabled_flag;
+ uint8_t sps_temporal_mvp_enabled_flag;
+ uint8_t sps_sbtmvp_enabled_flag;
+ uint8_t sps_amvr_enabled_flag;
+ uint8_t sps_bdof_enabled_flag;
+ uint8_t sps_bdof_control_present_in_ph_flag;
+ uint8_t sps_smvd_enabled_flag;
+ uint8_t sps_dmvr_enabled_flag;
+ uint8_t sps_dmvr_control_present_in_ph_flag;
+ uint8_t sps_mmvd_enabled_flag;
+ uint8_t sps_mmvd_fullpel_only_enabled_flag;
+ uint8_t sps_six_minus_max_num_merge_cand;
+ uint8_t sps_sbt_enabled_flag;
+ uint8_t sps_affine_enabled_flag;
+ uint8_t sps_five_minus_max_num_subblock_merge_cand;
+ uint8_t sps_6param_affine_enabled_flag;
+ uint8_t sps_affine_amvr_enabled_flag;
+ uint8_t sps_affine_prof_enabled_flag;
+ uint8_t sps_prof_control_present_in_ph_flag;
+ uint8_t sps_bcw_enabled_flag;
+ uint8_t sps_ciip_enabled_flag;
+ uint8_t sps_gpm_enabled_flag;
+ uint8_t sps_max_num_merge_cand_minus_max_num_gpm_cand;
+ uint8_t sps_log2_parallel_merge_level_minus2;
+ uint8_t sps_isp_enabled_flag;
+ uint8_t sps_mrl_enabled_flag;
+ uint8_t sps_mip_enabled_flag;
+ uint8_t sps_cclm_enabled_flag;
+ uint8_t sps_chroma_horizontal_collocated_flag;
+ uint8_t sps_chroma_vertical_collocated_flag;
+ uint8_t sps_palette_enabled_flag;
+ uint8_t sps_act_enabled_flag;
+ uint8_t sps_min_qp_prime_ts;
+ uint8_t sps_ibc_enabled_flag;
+ uint8_t sps_six_minus_max_num_ibc_merge_cand;
+ uint8_t sps_ladf_enabled_flag;
+ uint8_t sps_num_ladf_intervals_minus2;
+ int8_t sps_ladf_lowest_interval_qp_offset;
+ int8_t sps_ladf_qp_offset[4];
+ uint8_t sps_ladf_delta_threshold_minus1[4];
+
+ uint8_t sps_explicit_scaling_list_enabled_flag;
+ uint8_t sps_scaling_matrix_for_lfnst_disabled_flag;
+ uint8_t sps_scaling_matrix_for_alternative_colour_space_disabled_flag;
+ uint8_t sps_scaling_matrix_designated_colour_space_flag;
+ uint8_t sps_dep_quant_enabled_flag;
+ uint8_t sps_sign_data_hiding_enabled_flag;
+
+ uint8_t sps_virtual_boundaries_enabled_flag;
+ uint8_t sps_virtual_boundaries_present_flag;
+ uint8_t sps_num_ver_virtual_boundaries;
+ uint16_t sps_virtual_boundary_pos_x_minus1[3];
+ uint8_t sps_num_hor_virtual_boundaries;
+ uint16_t sps_virtual_boundary_pos_y_minus1[3];
+
+ uint8_t sps_timing_hrd_params_present_flag;
+ uint8_t sps_sublayer_cpb_params_present_flag;
+ H266RawGeneralTimingHrdParameters sps_general_timing_hrd_parameters;
+ H266RawOlsTimingHrdParameters sps_ols_timing_hrd_parameters;
+
+ uint8_t sps_field_seq_flag;
+ uint8_t sps_vui_parameters_present_flag;
+ uint16_t sps_vui_payload_size_minus1;
+ H266RawVUI vui;
+
+ uint8_t sps_extension_flag;
+
+ H266RawExtensionData extension_data;
+
+ //caculated values
+ uint8_t qp_bd_offset;
+ uint8_t min_cb_log2_size_y;
+} H266RawSPS;
+
+typedef struct H266RawPPS {
+ H266RawNALUnitHeader nal_unit_header;
+
+ uint8_t pps_pic_parameter_set_id;
+ uint8_t pps_seq_parameter_set_id;
+ uint8_t pps_mixed_nalu_types_in_pic_flag;
+ uint16_t pps_pic_width_in_luma_samples;
+ uint16_t pps_pic_height_in_luma_samples;
+
+ uint8_t pps_conformance_window_flag;
+ uint16_t pps_conf_win_left_offset;
+ uint16_t pps_conf_win_right_offset;
+ uint16_t pps_conf_win_top_offset;
+ uint16_t pps_conf_win_bottom_offset;
+
+ uint8_t pps_scaling_window_explicit_signalling_flag;
+ int16_t pps_scaling_win_left_offset;
+ int16_t pps_scaling_win_right_offset;
+ int16_t pps_scaling_win_top_offset;
+ int16_t pps_scaling_win_bottom_offset;
+
+ uint8_t pps_output_flag_present_flag;
+ uint8_t pps_no_pic_partition_flag;
+ uint8_t pps_subpic_id_mapping_present_flag;
+ /* TODO: pps_subpic_id[ i ] */
+ uint8_t pps_log2_ctu_size_minus5;
+ uint8_t pps_num_exp_tile_columns_minus1;
+ uint8_t pps_num_exp_tile_rows_minus1;
+ uint16_t pps_tile_column_width_minus1[H266_MAX_TILE_COLUMNS];
+ uint16_t pps_tile_row_height_minus1[H266_MAX_TILE_ROWS];
+
+ uint8_t pps_loop_filter_across_tiles_enabled_flag;
+ uint8_t pps_rect_slice_flag;
+ uint8_t pps_single_slice_per_subpic_flag;
+ uint16_t pps_num_slices_in_pic_minus1;
+ uint8_t pps_tile_idx_delta_present_flag;
+
+ /* TODO:
+ uint16_t pps_slice_width_in_tiles_minus1[H266_MAX_TILE_COLUMNS];
+ uint16_t pps_slice_height_in_tiles_minus1[H266_MAX_TILE_ROWS];
+ */
+ uint8_t pps_loop_filter_across_slices_enabled_flag;
+ uint8_t pps_cabac_init_present_flag;
+ uint8_t pps_num_ref_idx_default_active_minus1[2];
+ uint8_t pps_rpl1_idx_present_flag;
+ uint8_t pps_weighted_pred_flag;
+ uint8_t pps_weighted_bipred_flag;
+ uint8_t pps_ref_wraparound_enabled_flag;
+ uint8_t pps_pic_width_minus_wraparound_offset;
+ int8_t pps_init_qp_minus26;
+ uint8_t pps_cu_qp_delta_enabled_flag;
+ uint8_t pps_chroma_tool_offsets_present_flag;
+ uint8_t pps_cb_qp_offset;
+ uint8_t pps_cr_qp_offset;
+ uint8_t pps_joint_cbcr_qp_offset_present_flag;
+ uint8_t pps_joint_cbcr_qp_offset_value;
+ uint8_t pps_slice_chroma_qp_offsets_present_flag;
+ uint8_t pps_cu_chroma_qp_offset_list_enabled_flag;
+ uint8_t pps_chroma_qp_offset_list_len_minus1;
+ uint8_t pps_cb_qp_offset_list[6];
+ uint8_t pps_cr_qp_offset_list[6];
+ uint8_t pps_joint_cbcr_qp_offset_list[6];
+ uint8_t pps_deblocking_filter_control_present_flag;
+ uint8_t pps_deblocking_filter_override_enabled_flag;
+ uint8_t pps_deblocking_filter_disabled_flag;
+ uint8_t pps_dbf_info_in_ph_flag;
+
+ uint8_t pps_luma_beta_offset_div2;
+ uint8_t pps_luma_tc_offset_div2;
+ uint8_t pps_cb_beta_offset_div2;
+ uint8_t pps_cb_tc_offset_div2;
+ uint8_t pps_cr_beta_offset_div2;
+ uint8_t pps_cr_tc_offset_div2;
+
+ uint8_t pps_rpl_info_in_ph_flag;
+ uint8_t pps_sao_info_in_ph_flag;
+ uint8_t pps_alf_info_in_ph_flag;
+ uint8_t pps_wp_info_in_ph_flag;
+ uint8_t pps_qp_delta_info_in_ph_flag;
+
+ uint8_t pps_picture_header_extension_present_flag;
+ uint8_t pps_slice_header_extension_present_flag;
+ uint8_t pps_extension_flag;
+ H266RawExtensionData extension_data;
+
+ //calculated value;
+ uint16_t num_tile_columns;
+ uint16_t num_tile_rows;
+ uint16_t num_tiles_in_pic;
+} H266RawPPS;
+
+typedef struct H266RawAUD {
+ H266RawNALUnitHeader nal_unit_header;
+ uint8_t aud_irap_or_gdr_flag;
+ uint8_t aud_pic_type;
+} H266RawAUD;
+
+typedef struct H266RawPH {
+ uint8_t ph_gdr_or_irap_pic_flag;
+ uint8_t ph_non_ref_pic_flag;
+ uint8_t ph_gdr_pic_flag;
+ uint8_t ph_inter_slice_allowed_flag;
+ uint8_t ph_intra_slice_allowed_flag;
+ uint8_t ph_pic_parameter_set_id;
+ uint16_t ph_pic_order_cnt_lsb;
+ uint8_t ph_recovery_poc_cnt;
+ uint8_t ph_extra_bit[16];
+ uint8_t ph_poc_msb_cycle_present_flag;
+ uint8_t ph_poc_msb_cycle_val;
+ uint8_t ph_alf_enabled_flag;
+ uint8_t ph_num_alf_aps_ids_luma;
+ //uint8_t ph_alf_aps_id_luma[i]
+ uint8_t ph_alf_cb_enabled_flag;
+ uint8_t ph_alf_cr_enabled_flag;
+ uint8_t ph_alf_aps_id_chroma;
+ uint8_t ph_alf_cc_cb_enabled_flag;
+ uint8_t ph_alf_cc_cb_aps_id;
+ uint8_t ph_alf_cc_cr_enabled_flag;
+ uint8_t ph_alf_cc_cr_aps_id;
+ uint8_t ph_lmcs_enabled_flag;
+ uint8_t ph_lmcs_aps_id;
+ uint8_t ph_chroma_residual_scale_flag;
+ uint8_t ph_explicit_scaling_list_enabled_flag;
+ uint8_t ph_scaling_list_aps_id;
+ uint8_t ph_virtual_boundaries_present_flag;
+ uint8_t ph_num_ver_virtual_boundaries;
+ //ph_virtual_boundary_pos_x_minus1[ i ]
+ //ph_num_hor_virtual_boundaries
+ //ph_virtual_boundary_pos_y_minus1[ i ]
+
+ uint8_t ph_pic_output_flag;
+ H266RefPicLists ph_ref_pic_lists;
+
+ uint8_t ph_partition_constraints_override_flag;
+
+ uint8_t ph_log2_diff_min_qt_min_cb_intra_slice_luma;
+ uint8_t ph_max_mtt_hierarchy_depth_intra_slice_luma;
+ uint8_t ph_log2_diff_max_bt_min_qt_intra_slice_luma;
+ uint8_t ph_log2_diff_max_tt_min_qt_intra_slice_luma;
+ uint8_t ph_log2_diff_min_qt_min_cb_intra_slice_chroma;
+
+ uint8_t ph_max_mtt_hierarchy_depth_intra_slice_chroma;
+ uint8_t ph_log2_diff_max_bt_min_qt_intra_slice_chroma;
+ uint8_t ph_log2_diff_max_tt_min_qt_intra_slice_chroma;
+
+ uint8_t ph_cu_qp_delta_subdiv_intra_slice;
+ uint8_t ph_cu_chroma_qp_offset_subdiv_intra_slice;
+
+ uint8_t ph_log2_diff_min_qt_min_cb_inter_slice;
+ uint8_t ph_max_mtt_hierarchy_depth_inter_slice;
+ uint8_t ph_log2_diff_max_bt_min_qt_inter_slice;
+ uint8_t ph_log2_diff_max_tt_min_qt_inter_slice;
+ uint8_t ph_cu_qp_delta_subdiv_inter_slice;
+ uint8_t ph_cu_chroma_qp_offset_subdiv_inter_slice;
+
+ uint8_t ph_temporal_mvp_enabled_flag;
+ uint8_t ph_collocated_from_l0_flag;
+ uint8_t ph_collocated_ref_idx;
+ uint8_t ph_mmvd_fullpel_only_flag;
+ uint8_t ph_mvd_l1_zero_flag;
+ uint8_t ph_bdof_disabled_flag;
+ uint8_t ph_dmvr_disabled_flag;
+ uint8_t ph_prof_disabled_flag;
+ //pred_weight_table( );
+ uint8_t ph_qp_delta;
+ uint8_t ph_joint_cbcr_sign_flag;
+ uint8_t ph_sao_luma_enabled_flag;
+ uint8_t ph_sao_chroma_enabled_flag;
+ uint8_t ph_deblocking_params_present_flag;
+ uint8_t ph_deblocking_filter_disabled_flag;
+ uint8_t ph_luma_beta_offset_div2;
+ uint8_t ph_luma_tc_offset_div2;
+ uint8_t ph_cb_beta_offset_div2;
+ uint8_t ph_cb_tc_offset_div2;
+ uint8_t ph_cr_beta_offset_div2;
+ uint8_t ph_cr_tc_offset_div2;
+ uint8_t ph_extension_length;
+} H266RawPH;
+
+typedef struct H266RawSliceHeader {
+ H266RawNALUnitHeader nal_unit_header;
+ uint8_t sh_picture_header_in_slice_header_flag;
+ H266RawPH sh_picture_header;
+
+ uint16_t sh_subpic_id;
+ uint16_t sh_slice_address;
+ uint8_t sh_extra_bit[16];
+ uint8_t sh_num_tiles_in_slice_minus1;
+ uint8_t sh_slice_type;
+ uint8_t sh_no_output_of_prior_pics_flag;
+
+ uint8_t sh_alf_enabled_flag;
+ uint8_t sh_num_alf_aps_ids_luma;
+ uint8_t sh_alf_aps_id_luma[8];
+ uint8_t sh_alf_cb_enabled_flag;
+ uint8_t sh_alf_cr_enabled_flag;
+ uint8_t sh_alf_aps_id_chroma;
+ uint8_t sh_alf_cc_cb_enabled_flag;
+ uint8_t sh_alf_cc_cb_aps_id;
+ uint8_t sh_alf_cc_cr_enabled_flag;
+ uint8_t sh_alf_cc_cr_aps_id;
+
+ uint8_t sh_lmcs_used_flag;
+ uint8_t sh_explicit_scaling_list_used_flag;
+
+ H266RefPicLists sh_ref_pic_lists;
+
+ uint8_t sh_num_ref_idx_active_override_flag;
+ uint8_t sh_num_ref_idx_active_minus1[2];
+ uint8_t sh_cabac_init_flag;
+ uint8_t sh_collocated_from_l0_flag;
+ uint8_t sh_collocated_ref_idx;
+
+ int8_t sh_qp_delta;
+ int8_t sh_cb_qp_offset;
+ int8_t sh_cr_qp_offset;
+ int8_t sh_joint_cbcr_qp_offset;
+ uint8_t sh_cu_chroma_qp_offset_enabled_flag;
+
+ uint8_t sh_sao_luma_used_flag;
+ uint8_t sh_sao_chroma_used_flag;
+
+ uint8_t sh_deblocking_params_present_flag;
+ uint8_t sh_deblocking_filter_disabled_flag;
+ int8_t sh_luma_beta_offset_div2;
+ int8_t sh_luma_tc_offset_div2;
+ int8_t sh_cb_beta_offset_div2;
+ int8_t sh_cb_tc_offset_div2;
+ int8_t sh_cr_beta_offset_div2;
+ int8_t sh_cr_tc_offset_div2;
+ uint8_t sh_dep_quant_used_flag;
+
+ uint8_t sh_sign_data_hiding_used_flag;
+ uint8_t sh_ts_residual_coding_disabled_flag;
+ uint16_t sh_slice_header_extension_length;
+
+ uint8_t sh_entry_offset_len_minus1;
+ uint32_t sh_entry_point_offset_minus1[H266_MAX_ENTRY_POINT_OFFSETS];
+
+ //calclatecd values;
+ uint16_t num_entry_point_offsets;
+} H266RawSliceHeader;
+
+
+typedef struct H266RawSlice {
+ H266RawSliceHeader header;
+
+ uint8_t *data;
+ AVBufferRef *data_ref;
+ size_t data_size;
+ int data_bit_start;
+} H266RawSlice;
+
+
+typedef struct H266RawSEIBufferingPeriod {
+ uint8_t bp_seq_parameter_set_id;
+} H266RawSEIBufferingPeriod;
+
+typedef struct H266RawSEIPicTiming {
+} H266RawSEIPicTiming;
+
+typedef struct H266RawSEIPanScanRect {
+} H266RawSEIPanScanRect;
+
+typedef struct H266RawSEIUserDataRegistered {
+
+} H266RawSEIUserDataRegistered;
+
+typedef struct H266RawSEIUserDataUnregistered {
+} H266RawSEIUserDataUnregistered;
+
+typedef struct H266RawSEIRecoveryPoint {
+} H266RawSEIRecoveryPoint;
+
+typedef struct H266RawSEIDisplayOrientation {
+} H266RawSEIDisplayOrientation;
+
+typedef struct H266RawSEIActiveParameterSets {
+} H266RawSEIActiveParameterSets;
+
+typedef struct H266RawSEIDecodedPictureHash {
+} H266RawSEIDecodedPictureHash;
+
+typedef struct H266RawSEITimeCode {
+} H266RawSEITimeCode;
+
+typedef struct H266RawSEIMasteringDisplayColourVolume {
+} H266RawSEIMasteringDisplayColourVolume;
+
+typedef struct H266RawSEIContentLightLevelInfo {
+ uint16_t max_content_light_level;
+ uint16_t max_pic_average_light_level;
+} H266RawSEIContentLightLevelInfo;
+
+typedef struct H266RawSEIAlternativeTransferCharacteristics {
+ uint8_t preferred_transfer_characteristics;
+} H266RawSEIAlternativeTransferCharacteristics;
+
+typedef struct H266RawSEIAlphaChannelInfo {
+ uint8_t alpha_channel_cancel_flag;
+ uint8_t alpha_channel_use_idc;
+ uint8_t alpha_channel_bit_depth_minus8;
+ uint16_t alpha_transparent_value;
+ uint16_t alpha_opaque_value;
+ uint8_t alpha_channel_incr_flag;
+ uint8_t alpha_channel_clip_flag;
+ uint8_t alpha_channel_clip_type_flag;
+} H266RawSEIAlphaChannelInfo;
+
+typedef struct H266RawSEIPayload {
+ uint32_t payload_type;
+ uint32_t payload_size;
+ union {
+ H266RawSEIBufferingPeriod buffering_period;
+ H266RawSEIPicTiming pic_timing;
+ H266RawSEIPanScanRect pan_scan_rect;
+ H266RawSEIUserDataRegistered user_data_registered;
+ H266RawSEIUserDataUnregistered user_data_unregistered;
+ H266RawSEIRecoveryPoint recovery_point;
+ H266RawSEIDisplayOrientation display_orientation;
+ H266RawSEIActiveParameterSets active_parameter_sets;
+ H266RawSEIDecodedPictureHash decoded_picture_hash;
+ H266RawSEITimeCode time_code;
+ H266RawSEIMasteringDisplayColourVolume mastering_display;
+ H266RawSEIContentLightLevelInfo content_light_level;
+ H266RawSEIAlternativeTransferCharacteristics
+ alternative_transfer_characteristics;
+ H266RawSEIAlphaChannelInfo alpha_channel_info;
+ struct {
+ uint8_t *data;
+ AVBufferRef *data_ref;
+ size_t data_length;
+ } other;
+ } payload;
+ H266RawExtensionData extension_data;
+} H266RawSEIPayload;
+
+typedef struct H266RawSEI {
+ H266RawNALUnitHeader nal_unit_header;
+
+ H266RawSEIPayload payload[H266_MAX_SEI_PAYLOADS];
+ uint8_t payload_count;
+} H266RawSEI;
+
+typedef struct CodedBitstreamH266Context {
+ // Reader/writer context in common with the H.264 implementation.
+ CodedBitstreamH2645Context common;
+
+ // All currently available parameter sets. These are updated when
+ // any parameter set NAL unit is read/written with this context.
+ AVBufferRef *vps_ref[H266_MAX_VPS_COUNT];
+ AVBufferRef *sps_ref[H266_MAX_SPS_COUNT];
+ AVBufferRef *pps_ref[H266_MAX_PPS_COUNT];
+ H266RawVPS *vps[H266_MAX_VPS_COUNT];
+ H266RawSPS *sps[H266_MAX_SPS_COUNT];
+ H266RawPPS *pps[H266_MAX_PPS_COUNT];
+ H266RawPH ph;
+
+ // The currently active parameter sets. These are updated when any
+ // NAL unit refers to the relevant parameter set. These pointers
+ // must also be present in the arrays above.
+ const H266RawVPS *active_vps;
+ const H266RawSPS *active_sps;
+ const H266RawPPS *active_pps;
+ const H266RawPH *active_ph;
+} CodedBitstreamH266Context;
+
+
+#endif /* AVCODEC_CBS_H266_H */
diff --git a/libavcodec/cbs_h266_syntax_template.c
b/libavcodec/cbs_h266_syntax_template.c
new file mode 100644
index 0000000000..19fb1f8c27
--- /dev/null
+++ b/libavcodec/cbs_h266_syntax_template.c
@@ -0,0 +1,1493 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+static int FUNC(rbsp_trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw)
+{
+ int err;
+
+ fixed(1, rbsp_stop_one_bit, 1);
+ while (byte_alignment(rw) != 0)
+ fixed(1, rbsp_alignment_zero_bit, 0);
+ return 0;
+}
+
+static int FUNC(nal_unit_header)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawNALUnitHeader *current,
+ int expected_nal_unit_type)
+{
+ int err;
+
+ fixed(1, forbidden_zero_bit, 0);
+ fixed(1, nuh_reserved_zero_bit, 0);
+
+ u(6, nuh_layer_id, 0, 55);
+
+ if (expected_nal_unit_type >= 0)
+ u(5, nal_unit_type, expected_nal_unit_type,
+ expected_nal_unit_type);
+ else
+ ub(5, nal_unit_type);
+
+ u(3, nuh_temporal_id_plus1, 1, 7);
+ return 0;
+}
+
+static int FUNC(byte_alignment)(CodedBitstreamContext *ctx, RWContext *rw)
+{
+ int err;
+
+ fixed(1, alignment_bit_equal_to_one, 1);
+ while (byte_alignment(rw) != 0)
+ fixed(1, alignment_bit_equal_to_zero, 0);
+ return 0;
+}
+
+static int FUNC(general_constraints_info)(CodedBitstreamContext *ctx,
RWContext *rw,
+ H266GeneralConstraintsInfo *current)
+{
+ int err;
+
+ flag(gci_present_flag);
+ if (current->gci_present_flag) {
+ return AVERROR_PATCHWELCOME;
+ }
+ while (byte_alignment(rw))
+ fixed(1, bit_equal_to_zero, 0);
+ return 0;
+}
+
+static int FUNC(profile_tier_level)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawProfileTierLevel *current,
+ int profile_tire_present_flag,
tire?
+ int max_num_sub_layers_minus1)
+{
+ int err, i;
+
+ if (profile_tire_present_flag) {
+ ub(7, general_profile_idc);
+ flag(general_tier_flag);
+ }
+ ub(8, general_level_idc);
+ flag(ptl_frame_only_constraint_flag);
+ flag(ptl_multilayer_enabled_flag);
+ if (profile_tire_present_flag) {
+ CHECK(FUNC(general_constraints_info)(ctx, rw,
¤t->general_constraints_info));
+ }
+ for( i = max_num_sub_layers_minus1 - 1; i >= 0; i--)
+ flags(ptl_sublayer_level_present_flag[i], 1, i);
+ while (byte_alignment(rw))
+ fixed(1, ptl_reserved_zero_bit, 0);
+ for( i = max_num_sub_layers_minus1 - 1; i >= 0; i-- )
The styling in this is inconsistent. Put a space after a keyword, but not
around parentheses (also in many more places below).
+ if(current->ptl_sublayer_level_present_flag[i])
+ ubs(8, sublayer_level_idc[i], 1, i);
+ if (profile_tire_present_flag) {
+ ub(8, ptl_num_sub_profiles);
+ for( i = 0; i < current->ptl_num_sub_profiles; i++ )
+ ubs(32, general_sub_profile_idc[i], 1, i);
+ }
+ return 0;
+}
+
+static int FUNC(vui_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawVUI *current)
+{
+ int err;
+
+ flag(vui_progressive_source_flag);
+ flag(vui_interlaced_source_flag);
+ flag(vui_non_packed_constraint_flag);
+ flag(vui_non_projected_constraint_flag);
+ flag(vui_aspect_ratio_info_present_flag);
+ if(current->vui_aspect_ratio_info_present_flag ) {
+ flag(vui_aspect_ratio_constant_flag);
+ ub(8, vui_aspect_ratio_idc);
+ if(current->vui_aspect_ratio_idc == 255 ) {
+ ub(16, vui_sar_width);
+ ub(16, vui_sar_height);
+ }
+ } else {
+ infer(vui_aspect_ratio_constant_flag, 0);
+ infer(vui_aspect_ratio_idc, 0);
+
+ }
+ flag(vui_overscan_info_present_flag);
+ if (current->vui_overscan_info_present_flag)
+ flag(vui_overscan_appropriate_flag);
+ flag(vui_colour_description_present_flag);
+ if(current->vui_colour_description_present_flag ) {
+ ub(8, vui_colour_primaries);
+ ub(8, vui_transfer_characteristics);
+ ub(8, vui_matrix_coeffs);
+ flag(vui_full_range_flag);
+ } else {
+ infer(vui_colour_primaries, 2);
+ infer(vui_transfer_characteristics, 2);
+ infer(vui_matrix_coeffs, 2);
+ infer(vui_full_range_flag, 0);
+ }
+ flag(vui_chroma_loc_info_present_flag);
+ if(current->vui_chroma_loc_info_present_flag ) {
+ if(current->vui_progressive_source_flag &&
!current->vui_interlaced_source_flag) {
+ ue(vui_chroma_sample_loc_type_frame, 0, 6);
+ }
+ else {
+ ue(vui_chroma_sample_loc_type_top_field, 0, 6);
+ ue(vui_chroma_sample_loc_type_bottom_field, 0, 6);
+ }
+ }
+
+ return 0;
+}
+
+static int FUNC(vui_payload)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawVUI *current, uint16_t vui_payload_size)
+{
+ int err;
+
+#ifdef READ
+ int start_pos, end_pos, left;
+
+ start_pos = get_bits_count(rw);
+ CHECK(FUNC(vui_parameters)(ctx, rw, current));
+ end_pos = get_bits_count(rw);
+
+ left = vui_payload_size * 8 - (end_pos - start_pos);
+ skip_bits(rw, left);
This needs to record and regenerate the extension data to avoid breaking
passthrough. (Like other extension data cases.)
+#else
+ return AVERROR_PATCHWELCOME;
+#endif
+
+
+ return 0;
+}
+
+static int FUNC(vps)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawVPS *current)
+{
+ HEADER("Video Parameter Set");
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "vps is not supported yet\n");
+
+ return AVERROR_PATCHWELCOME;
+}
+
+static int FUNC(dpb_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266DpbParameters *current, uint8_t max_sublayers_minus1,
uint8_t sublayer_info_flag)
+{
+ int err, i;
+ for(i = ( sublayer_info_flag ? 0 : max_sublayers_minus1 ); i <=
max_sublayers_minus1; i++ ) {
+ ues(dpb_max_dec_pic_buffering_minus1[i], 0, H266_MAX_DPB_SIZE - 1, 1,
i);
+ ues(dpb_max_num_reorder_pics[i], 0,
current->dpb_max_dec_pic_buffering_minus1[i], 1, i);
+ ues(dpb_max_latency_increase_plus1[i], 0, UINT32_MAX - 1, 1, i);
Split lines to keep this to 80 characters. Aligning the matching fields would
be nice too.
for (int i = sublayer_info_flag ? 0 : max_sublayers_minus1;
i <= max_sublayers_minus1; i++) {
ues(dpb_max_dec_pic_buffering_minus1[i],
0, H266_MAX_DPB_SIZE - 1, 1, i);
ues(dpb_max_num_reorder_pics[i],
0, current->dpb_max_dec_pic_buffering_minus1[i], 1, i);
ues(dpb_max_latency_increase_plus1[i],
0, UINT32_MAX - 1, 1, i);
}
+ }
+ return 0;
+}
+
+static int FUNC(ref_pic_list_struct)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RefPicListStruct *current, uint8_t list_idx, uint8_t
rpls_idx,
+ const H266RawSPS* const sps)
* is part of the declarator, not the type. We generally don't put redundant
const on variables, either.
+{
+
+ int err, i, j;
+ ue(num_ref_entries, 0, H266_MAX_DPB_SIZE + 13);
These fields all have more subscripts than you've included here. Is there a
sensible way to make the trace output match the standard?
+ if(sps->sps_long_term_ref_pics_flag && rpls_idx < sps->sps_num_ref_pic_lists[list_idx]
&& current->num_ref_entries > 0)
+ flag(ltrp_in_header_flag);
+ if (sps->sps_long_term_ref_pics_flag && rpls_idx ==
sps->sps_num_ref_pic_lists[list_idx])
+ infer(ltrp_in_header_flag, 1);
+ current->num_ltrp_entries = 0;
+ for( i = 0, j = 0; i < current->num_ref_entries; i++) {
+ if(sps->sps_inter_layer_prediction_enabled_flag )
+ flags(inter_layer_ref_pic_flag[i], 1, i);
+ else
+ infer(inter_layer_ref_pic_flag[i], 0);
+
+ if(!current->inter_layer_ref_pic_flag[i] ) {
+ if(sps->sps_long_term_ref_pics_flag )
+ flags(st_ref_pic_flag[i], 1, i);
+ else
+ infer(st_ref_pic_flag[i], 1);
+ if(current->st_ref_pic_flag[i]) {
+ int abs_delta_poc_st;
+ ues(abs_delta_poc_st[i], 0, MAX_UINT_BITS(15), 1, i);
+ if( (sps->sps_weighted_pred_flag || sps->sps_weighted_bipred_flag )
&& i != 0 )
+ abs_delta_poc_st = current->abs_delta_poc_st[i];
+ else
+ abs_delta_poc_st = current->abs_delta_poc_st[i] + 1;
+ if (abs_delta_poc_st > 0)
+ flags(strp_entry_sign_flag[i], 1, i);
+ } else {
+ if(!current->ltrp_in_header_flag) {
+ ubs(sps->sps_log2_max_pic_order_cnt_lsb_minus4 + 4,
rpls_poc_lsb_lt[j], 1, j);
+ j++;
+ }
+ current->num_ltrp_entries++;
+ }
+ } else {
+ //todo: check range when vps parser is ready.
+ ues(ilrp_idx[i], 0, MAX_UINT_BITS(8), 1, i);
+ }
+
+ }
+ return 0;
+}
+
+static int FUNC(ref_pic_lists)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RefPicLists *current)
+{
+ CodedBitstreamH266Context *h266 = ctx->priv_data;
+ const H266RawSPS *sps = h266->active_sps;
+ const H266RawPPS *pps = h266->active_pps;
+ const H266RefPicListStruct* ref_list;
*
+ int err, i, j;
+ for (i = 0; i < 2; i++) {
+ if (sps->sps_num_ref_pic_lists[i] > 0 && (i == 0 || (i == 1 &&
pps->pps_rpl1_idx_present_flag))) {
+ flags(rpl_sps_flag[i], 1, i);
+ } else {
+ if (!sps->sps_num_ref_pic_lists[i]) {
+ infer(rpl_sps_flag[i], 0);
+ } else {
+ if (!pps->pps_rpl1_idx_present_flag && i == 1)
+ infer(rpl_sps_flag[1], current->rpl_sps_flag[0]);
+ }
+ }
+ if (current->rpl_sps_flag[i]) {
+ if(sps->sps_num_ref_pic_lists[i] > 1 && (i == 0 || ( i == 1 &&
pps->pps_rpl1_idx_present_flag))) {
+ us(ceil(log2(sps->sps_num_ref_pic_lists[i])), rpl_idx[i], 0,
sps->sps_num_ref_pic_lists[i] - 1, 1, i);
Don't use floating point arithmetic. There is av_log2() for integers.
+ } else if (sps->sps_num_ref_pic_lists[i] == 1) {
+ infer(rpl_idx[i], 0);
+ } else if (i == 1 && !pps->pps_rpl1_idx_present_flag){
+ infer(rpl_idx[1], current->rpl_idx[0]);
+ } else {
+ //how to handle this? or never happpend?
This sort of thing needs to be resolved.
I think the other conditions are a cover?
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "can't infer the
rpl_idx[i]\n");
+ return AVERROR_PATCHWELCOME;
+ }
+ memcpy(¤t->rpl_ref_list[i],
&sps->sps_ref_pic_list_struct[i][current->rpl_idx[i]],
sizeof(current->rpl_ref_list[i]));
+ } else {
+ CHECK(FUNC(ref_pic_list_struct)(ctx, rw, ¤t->rpl_ref_list[i],
i, sps->sps_num_ref_pic_lists[i], sps));
+ }
+ ref_list = ¤t->rpl_ref_list[i];
+
+ for( j = 0; j < ref_list->num_ltrp_entries; j++ ) {
+ if(ref_list->ltrp_in_header_flag)
+ ubs(sps->sps_log2_max_pic_order_cnt_lsb_minus4 + 4,
poc_lsb_lt[i][j], 2, i, j);
+ flags(delta_poc_msb_cycle_present_flag[i][j], 2, i, j);
+ if(current->delta_poc_msb_cycle_present_flag[i][j])
+ ues(delta_poc_msb_cycle_lt[i][j], 0, MAX_UINT_BITS(32 -
sps->sps_log2_max_pic_order_cnt_lsb_minus4 - 4), 2, i, j);
+ }
+ }
+ return 0;
+
+}
+
+static int FUNC(general_timing_hrd_parameters)(CodedBitstreamContext *ctx,
RWContext *rw,
+ H266RawGeneralTimingHrdParameters *current)
+{
+ int err;
+ ub(32, num_units_in_tick);
+ u(32, time_scale, 1, MAX_UINT_BITS(32));
+ flag(general_nal_hrd_params_present_flag);
+ flag(general_vcl_hrd_params_present_flag);
+
+ if(current->general_nal_hrd_params_present_flag ||
current->general_vcl_hrd_params_present_flag ) {
+ flag(general_same_pic_timing_in_all_ols_flag);
+ flag(general_du_hrd_params_present_flag);
+ if(current->general_du_hrd_params_present_flag)
+ ub(8, tick_divisor_minus2);
+ ub(4, bit_rate_scale);
+ ub(4, cpb_size_scale);
+ if(current->general_du_hrd_params_present_flag)
+ ub(4, cpb_size_du_scale);
+ ue(hrd_cpb_cnt_minus1, 0, 31);
+ } else {
+ //infer general_same_pic_timing_in_all_ols_flag?
Looks like it should be, though the standard doesn't actually state it the way
it does with general_du_hrd_params_present_flag.
+ infer(general_du_hrd_params_present_flag, 0);
+ }
+ return 0;
+}
+
+static int FUNC(sublayer_hrd_parameters)(CodedBitstreamContext *ctx, RWContext
*rw,
+ H266RawSubLayerHRDParameters* current, int sublayer_id,
const H266RawGeneralTimingHrdParameters* const general)
+{
+ int err, i;
+ for (i = 0; i <= general->hrd_cpb_cnt_minus1; i++) {
+ ues(bit_rate_value_minus1[i], 0, UINT32_MAX - 1, 2, sublayer_id, i);
+ ues(cpb_size_value_minus1[i], 0, UINT32_MAX - 1, 2, sublayer_id, i);
+ if (general->general_du_hrd_params_present_flag) {
+ ues(cpb_size_du_value_minus1[i], 0, UINT32_MAX - 1, 2,
sublayer_id, i);
+ ues(bit_rate_du_value_minus1[i], 0, UINT32_MAX - 1, 2,
sublayer_id, i);
+ }
+ flags(cbr_flag[i], 2, sublayer_id, i);
+ }
+ return 0;
+}
+
+static int FUNC(ols_timing_hrd_parameters)(CodedBitstreamContext *ctx,
RWContext *rw,
+ H266RawOlsTimingHrdParameters* current, uint8_t
first_sublayer, uint8_t max_sublayers_minus1, const
H266RawGeneralTimingHrdParameters * general)
+{
+ int err, i;
+ for( i = first_sublayer; i <= max_sublayers_minus1; i++ ) {
+ flags(fixed_pic_rate_general_flag[i], 1, i);
+ if (!current->fixed_pic_rate_general_flag[i])
+ flags(fixed_pic_rate_within_cvs_flag[i], 1, i);
+ else
+ infer(fixed_pic_rate_within_cvs_flag[i], 1);
+ if(current->fixed_pic_rate_within_cvs_flag[i]) {
+ ues(elemental_duration_in_tc_minus1[i], 0, 2047, 1, i);
+ infer(low_delay_hrd_flag[i], 0);
+ } else if((general->general_nal_hrd_params_present_flag ||
general->general_vcl_hrd_params_present_flag)
+ && general->hrd_cpb_cnt_minus1 == 0 ) {
+ flags(low_delay_hrd_flag[i], 1, i);
+ } else {
+ infer(low_delay_hrd_flag[i], 0);
+ }
+ if(general->general_nal_hrd_params_present_flag)
+ CHECK(FUNC(sublayer_hrd_parameters)(ctx, rw,
¤t->nal_sub_layer_hrd_parameters[i], i, general));
+ if(general->general_vcl_hrd_params_present_flag)
+ CHECK(FUNC(sublayer_hrd_parameters)(ctx, rw,
¤t->nal_sub_layer_hrd_parameters[i], i, general));
+ }
+ return 0;
+}
+
+static uint8_t get_extra_bits(const uint8_t* present_flags, uint8_t
extra_bytes)
+{
+ uint8_t num_extra_bits = 0;
+ int i;
+ for (i = 0; i < extra_bytes * 8; i++) {
+ if (present_flags[i])
+ num_extra_bits++;
+ }
+ return num_extra_bits;
+}
+
+static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawSPS *current)
+{
+ CodedBitstreamH266Context *h266 = ctx->priv_data;
+ const H266RawVPS *vps;
+ int err, i, j;
+ unsigned int ctb_log2_size_y, min_cb_log2_size_y,
+ min_qt_log2_size_intra_y, min_qt_log2_size_inter_y,
+ ctb_size_y, max_num_merge_cand;
+
+ HEADER("Sequence Parameter Set");
+
+ CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header,
H266_NAL_SPS));
+
+ ub(4, sps_seq_parameter_set_id);
+ ub(4, sps_video_parameter_set_id);
+ h266->active_vps = vps = h266->vps[current->sps_video_parameter_set_id];
Not if sps_video_parameter_set_id == 0.
Should we be making an implied VPS in that case?
+
+ u(3, sps_max_sublayers_minus1, 0, H266_MAX_SUB_LAYERS - 1);
+ u(2, sps_chroma_format_idc, 0, 3);
+ u(2, sps_log2_ctu_size_minus5, 0, 3);
+ ctb_log2_size_y = current->sps_log2_ctu_size_minus5 + 5;
+ ctb_size_y = 1 << ctb_log2_size_y;
+
+ flag(sps_ptl_dpb_hrd_params_present_flag);
+ if (current->sps_ptl_dpb_hrd_params_present_flag) {
+ CHECK(FUNC(profile_tier_level)(ctx, rw, ¤t->profile_tier_level,
+ 1, current->sps_max_sublayers_minus1));
+ }
+ flag(sps_gdr_enabled_flag);
+ flag(sps_ref_pic_resampling_enabled_flag);
+ if(current->sps_ref_pic_resampling_enabled_flag)
+ flag(sps_res_change_in_clvs_allowed_flag);
+ else
+ infer(sps_res_change_in_clvs_allowed_flag, 0);
+
+ ue(sps_pic_width_max_in_luma_samples, 1, H266_MAX_WIDTH);
+ ue(sps_pic_height_max_in_luma_samples, 1, H266_MAX_HEIGHT);
+
+ flag(sps_conformance_window_flag);
+ if (current->sps_conformance_window_flag) {
+ ue(sps_conf_win_left_offset, 0,
current->sps_pic_width_max_in_luma_samples);
+ ue(sps_conf_win_right_offset, 0,
current->sps_pic_width_max_in_luma_samples);
+ ue(sps_conf_win_top_offset, 0,
current->sps_pic_height_max_in_luma_samples);
+ ue(sps_conf_win_bottom_offset, 0,
current->sps_pic_height_max_in_luma_samples);
These bounds aren't right, because the value is post-subsampling. Divide by
SubWidthC.
+ } else {
+ infer(sps_conf_win_left_offset, 0);
+ infer(sps_conf_win_right_offset, 0);
+ infer(sps_conf_win_top_offset, 0);
+ infer(sps_conf_win_bottom_offset, 0);
+ }
+ flag(sps_subpic_info_present_flag);
+ if (current->sps_subpic_info_present_flag) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "subpic is not supported yet\n");
+ return AVERROR_PATCHWELCOME;
+ } else {
+ infer(sps_num_subpics_minus1, 0);
+ infer(sps_independent_subpics_flag, 1);
+ infer(sps_subpic_same_size_flag, 0);
+ //?sps_subpic_id_len_minus1;
Doesn't matter, because subpic_id fields don't appear if no subpics.
+ infer(sps_subpic_id_mapping_explicitly_signalled_flag, 0);
+
+ }
+
+ ue(sps_bitdepth_minus8, 0, 2);
+ current->qp_bd_offset = 6 * current->sps_bitdepth_minus8;
QpBdOffset isn't a bitstream value and is only used in this function, so put it
on the stack.
+
+ flag(sps_entropy_coding_sync_enabled_flag);
+ flag(sps_entry_point_offsets_present_flag);
+
+ u(4, sps_log2_max_pic_order_cnt_lsb_minus4, 0, 12);
+ flag(sps_poc_msb_cycle_flag);
+ if (current->sps_poc_msb_cycle_flag)
+ ue(sps_poc_msb_cycle_len_minus1, 0, 32 -
current->sps_log2_max_pic_order_cnt_lsb_minus4 - 5);
+
+ u(2, sps_num_extra_ph_bytes, 0, 2);
+ for (i = 0; i < (current->sps_num_extra_ph_bytes * 8 ); i++) {
+ flags(sps_extra_ph_bit_present_flag[i], 1, i);
+ }
+ current->num_extra_ph_bits =
get_extra_bits(current->sps_extra_ph_bit_present_flag,
current->sps_num_extra_ph_bytes);
+
+ u(2, sps_num_extra_sh_bytes, 0, 0);
+ for (i = 0; i < (current->sps_num_extra_sh_bytes * 8 ); i++) {
+ flags(sps_extra_sh_bit_present_flag[i], 1, i);
+ }
+ current->num_extra_sh_bits =
get_extra_bits(current->sps_extra_sh_bit_present_flag,
current->sps_num_extra_sh_bytes);
Don't include the derived NumExtra[PS]hBits fields in the raw SPS structure.
They can trivially be recalculated when used, so I think do it there.
+
+ if (current->sps_ptl_dpb_hrd_params_present_flag) {
+ if (current->sps_max_sublayers_minus1 > 0)
+ flag(sps_sublayer_dpb_params_flag);
+ else
+ infer(sps_sublayer_dpb_params_flag, 0);
+ CHECK(FUNC(dpb_parameters)(ctx, rw, ¤t->sps_dpb_params,
current->sps_max_sublayers_minus1,
+ current->sps_sublayer_dpb_params_flag));
+ }
+
+ ue(sps_log2_min_luma_coding_block_size_minus2, 0, FFMIN(4,
current->sps_log2_ctu_size_minus5 + 3));
+ min_cb_log2_size_y = current->min_cb_log2_size_y =
current->sps_log2_min_luma_coding_block_size_minus2 + 2;
+
+ flag(sps_partition_constraints_override_enabled_flag);
+
+ ue(sps_log2_diff_min_qt_min_cb_intra_slice_luma, 0, FFMIN(6,
ctb_log2_size_y) - min_cb_log2_size_y);
+ min_qt_log2_size_intra_y =
current->sps_log2_diff_min_qt_min_cb_intra_slice_luma + min_cb_log2_size_y;
+
+ ue(sps_max_mtt_hierarchy_depth_intra_slice_luma, 0, 2 * (ctb_log2_size_y -
min_cb_log2_size_y));
+
+ if (current->sps_max_mtt_hierarchy_depth_intra_slice_luma) {
Try to use the same styling as the standard as far as possible, so != 0 if it
isn't a flag.
+ ue(sps_log2_diff_max_bt_min_qt_intra_slice_luma, 0, ctb_log2_size_y -
min_qt_log2_size_intra_y);
+ ue(sps_log2_diff_max_tt_min_qt_intra_slice_luma, 0, FFMIN(6,
ctb_log2_size_y) - min_qt_log2_size_intra_y);
+ } else {
+ infer(sps_log2_diff_max_bt_min_qt_intra_slice_luma, 0);
+ infer(sps_log2_diff_max_tt_min_qt_intra_slice_luma, 0);
+ }
+
+ if (current->sps_chroma_format_idc) {
+ flag(sps_qtbtt_dual_tree_intra_flag);
+ } else {
+ infer(sps_qtbtt_dual_tree_intra_flag, 0);
+ }
+
+ if(current->sps_qtbtt_dual_tree_intra_flag) {
+ ue(sps_log2_diff_min_qt_min_cb_intra_slice_chroma, 0, FFMIN(6,
ctb_log2_size_y) - min_cb_log2_size_y);
+ ue(sps_max_mtt_hierarchy_depth_intra_slice_chroma, 0, 2 *
(ctb_log2_size_y - min_cb_log2_size_y));
+ if(current->sps_max_mtt_hierarchy_depth_intra_slice_chroma) {
+ unsigned int min_qt_log2_size_intra_c =
current->sps_log2_diff_min_qt_min_cb_intra_slice_chroma + min_cb_log2_size_y;
+ ue(sps_log2_diff_max_bt_min_qt_intra_slice_chroma, 0, FFMIN(6,
ctb_log2_size_y) - min_qt_log2_size_intra_c);
+ ue(sps_log2_diff_max_tt_min_qt_intra_slice_chroma, 0, FFMIN(6,
ctb_log2_size_y) - min_qt_log2_size_intra_c);
+ }
+ } else {
+ infer(sps_log2_diff_min_qt_min_cb_intra_slice_chroma, 0);
+ infer(sps_max_mtt_hierarchy_depth_intra_slice_chroma, 0);
+ }
+ if (!current->sps_max_mtt_hierarchy_depth_intra_slice_chroma) {
+ infer(sps_log2_diff_max_bt_min_qt_intra_slice_chroma, 0);
+ infer(sps_log2_diff_max_tt_min_qt_intra_slice_chroma, 0);
+ }
+
+ ue(sps_log2_diff_min_qt_min_cb_inter_slice, 0, FFMIN(6, ctb_log2_size_y) -
min_cb_log2_size_y);
+ min_qt_log2_size_inter_y =
current->sps_log2_diff_min_qt_min_cb_inter_slice + min_cb_log2_size_y;
+
+ ue(sps_max_mtt_hierarchy_depth_inter_slice, 0, 2 * (ctb_log2_size_y -
min_cb_log2_size_y));
+ if(current->sps_max_mtt_hierarchy_depth_inter_slice) {
+ ue(sps_log2_diff_max_bt_min_qt_inter_slice, 0, ctb_log2_size_y -
min_qt_log2_size_inter_y);
+ ue(sps_log2_diff_max_tt_min_qt_inter_slice, 0, FFMIN(6,
ctb_log2_size_y) - min_qt_log2_size_inter_y);
+ } else {
+ infer(sps_log2_diff_max_bt_min_qt_inter_slice, 0);
+ infer(sps_log2_diff_max_tt_min_qt_inter_slice, 0);
+ }
+
+ if (ctb_size_y > 32)
+ flag(sps_max_luma_transform_size_64_flag);
+ else
+ infer(sps_max_luma_transform_size_64_flag, 0);
+
+ flag(sps_transform_skip_enabled_flag);
+ if (current->sps_transform_skip_enabled_flag) {
+ ue(sps_log2_transform_skip_max_size_minus2, 0, 3);
+ flag(sps_bdpcm_enabled_flag);
+ }
+
+ ...
I haven't read through all of this in detail. It needs at least one other
person to check through and compare against the standard.
+
+ if(current->sps_ptl_dpb_hrd_params_present_flag) {
+ flag(sps_timing_hrd_params_present_flag);
+ if (current->sps_timing_hrd_params_present_flag) {
+ uint8_t first_sublayer;
+ CHECK(FUNC(general_timing_hrd_parameters)(ctx, rw,
¤t->sps_general_timing_hrd_parameters));
+ if(current->sps_max_sublayers_minus1 > 0)
+ flag(sps_sublayer_cpb_params_present_flag);
+ else
+ infer(sps_sublayer_cpb_params_present_flag, 0);
+ first_sublayer = current->sps_sublayer_cpb_params_present_flag ? 0 :
current->sps_max_sublayers_minus1;
+ CHECK(FUNC(ols_timing_hrd_parameters)(ctx, rw,
¤t->sps_ols_timing_hrd_parameters, first_sublayer,
current->sps_max_sublayers_minus1, ¤t->sps_general_timing_hrd_parameters));
+ }
+ }
+
+ flag(sps_field_seq_flag);
+ flag(sps_vui_parameters_present_flag);
+ if (current->sps_vui_parameters_present_flag) {
+ ue(sps_vui_payload_size_minus1, 0, 1023);
+ while (!byte_alignment(rw))
+ fixed(1, sps_vui_alignment_zero_bit, 0);
+ CHECK(FUNC(vui_payload)(ctx, rw, ¤t->vui,
current->sps_vui_payload_size_minus1 + 1));
+ }
+
+ flag(sps_extension_flag);
+ if (current->sps_extension_flag) {
+ return AVERROR_PATCHWELCOME;
Also wanted for passthrough.
+ }
+ CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
+
+ return 0;
+}
+
+static const uint8_t h266_sub_width_c[] = {
+ 1, 2, 2, 1
+};
+
+static const uint8_t h266_sub_height_c[] = {
+ 1, 2, 1, 1
+};
You can't put fixed tables here, because the file is included twice.
These can be inside the function below.
+
+static int get_num_tile(const uint16_t* pps_tile_size_minus1, uint16_t
num_exp_tile_minus1, unsigned int pic_size_in_ctbs_y, unsigned int
exp_tile_size)
+{
+ uint16_t uniform_size = pps_tile_size_minus1[num_exp_tile_minus1] + 1;
+ unsigned int left = pic_size_in_ctbs_y - exp_tile_size;
+ return num_exp_tile_minus1 + 1 + (left + uniform_size - 1) / uniform_size;
+}
Likewise functions.
The derived tile values don't want to go in the bitstream value structure,
anyway. They can be calculated locally here.
+
+static int FUNC(pps)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawPPS *current)
+{
+
+ CodedBitstreamH266Context *h266 = ctx->priv_data;
+ const H266RawSPS *sps;
+ int err, i;
+ unsigned int min_cb_size_y, divisor, ctb_size_y,
+ pic_width_in_ctbs_y, pic_height_in_ctbs_y;
+ uint8_t sub_width_c, sub_height_c;
+
+ HEADER("Picture Parameter Set");
+
+ CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header,
H266_NAL_PPS));
+
+ ub(6, pps_pic_parameter_set_id);
+ ub(4, pps_seq_parameter_set_id);
+ sps = h266->sps[current->pps_seq_parameter_set_id];
+ if (!sps) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
+ current->pps_seq_parameter_set_id);
+ return AVERROR_INVALIDDATA;
+ }
+ h266->active_sps = sps;
+
+ flag(pps_mixed_nalu_types_in_pic_flag);
+ ue(pps_pic_width_in_luma_samples, 1,
sps->sps_pic_width_max_in_luma_samples);
+ ue(pps_pic_height_in_luma_samples, 1,
sps->sps_pic_height_max_in_luma_samples);
+
+ min_cb_size_y = 1 << (sps->sps_log2_min_luma_coding_block_size_minus2 + 2);
+ divisor = FFMAX(min_cb_size_y, 8);
+ if (current->pps_pic_width_in_luma_samples % divisor ||
+ current->pps_pic_height_in_luma_samples % divisor) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid dimensions: %ux%u not divisible
"
+ "by %u, MinCbSizeY = %u.\n",
current->pps_pic_width_in_luma_samples,
+ current->pps_pic_height_in_luma_samples, divisor,
min_cb_size_y);
+ return AVERROR_INVALIDDATA;
+ }
+ if (!sps->sps_res_change_in_clvs_allowed_flag &&
+ (current->pps_pic_width_in_luma_samples !=
sps->sps_pic_width_max_in_luma_samples ||
+ current->pps_pic_height_in_luma_samples !=
sps->sps_pic_height_max_in_luma_samples)) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "Resoltuion change is not allowed, in
max resolution (%ux%u) mismatched with pps(%ux%u).\n",
+ sps->sps_pic_width_max_in_luma_samples,
+ sps->sps_pic_height_max_in_luma_samples,
+ current->pps_pic_width_in_luma_samples,
+ current->pps_pic_height_in_luma_samples);
+ return AVERROR_INVALIDDATA;
+ }
+
+ ctb_size_y = 1 << (sps->sps_log2_ctu_size_minus5 + 5);
+ if (sps->sps_ref_wraparound_enabled_flag) {
+ if ((ctb_size_y / min_cb_size_y + 1) >
(current->pps_pic_width_in_luma_samples / min_cb_size_y - 1)) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid width(%u), ctb_size_y = %u,
min_cb_size_y = %u.\n",
+ current->pps_pic_width_in_luma_samples,
+ ctb_size_y, min_cb_size_y);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ flag(pps_conformance_window_flag);
+ if (current->pps_pic_width_in_luma_samples ==
sps->sps_pic_width_max_in_luma_samples &&
+ current->pps_pic_height_in_luma_samples ==
sps->sps_pic_height_max_in_luma_samples &&
+ current->pps_conformance_window_flag) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "Conformance window flag should not
true.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ sub_width_c = h266_sub_width_c[sps->sps_chroma_format_idc];
+ sub_height_c = h266_sub_height_c[sps->sps_chroma_format_idc];
+ if (current->pps_conformance_window_flag) {
+ ue(pps_conf_win_left_offset, 0,
current->pps_pic_width_in_luma_samples);
+ ue(pps_conf_win_right_offset, 0,
current->pps_pic_width_in_luma_samples);
+ ue(pps_conf_win_top_offset, 0,
current->pps_pic_height_in_luma_samples);
+ ue(pps_conf_win_bottom_offset, 0,
current->pps_pic_height_in_luma_samples);
+ if (sub_width_c * (current->pps_conf_win_left_offset +
current->pps_conf_win_right_offset) >= current->pps_pic_width_in_luma_samples ||
+ sub_height_c * (current->pps_conf_win_top_offset +
current->pps_conf_win_bottom_offset) >= current->pps_pic_height_in_luma_samples) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid pps conformance window:
(%u, %u, %u, %u), resolution is %ux%u, sub wxh is %ux%u.\n",
+ current->pps_conf_win_left_offset,
current->pps_conf_win_right_offset,
+ current->pps_conf_win_top_offset,
current->pps_conf_win_bottom_offset,
+ current->pps_pic_width_in_luma_samples,
current->pps_pic_height_in_luma_samples,
+ sub_width_c, sub_height_c);
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ if (current->pps_pic_width_in_luma_samples ==
sps->sps_pic_width_max_in_luma_samples &&
+ current->pps_pic_height_in_luma_samples ==
sps->sps_pic_height_max_in_luma_samples) {
+ infer(pps_conf_win_left_offset, sps->sps_conf_win_left_offset);
+ infer(pps_conf_win_right_offset, sps->sps_conf_win_right_offset);
+ infer(pps_conf_win_top_offset, sps->sps_conf_win_top_offset);
+ infer(pps_conf_win_bottom_offset, sps->sps_conf_win_bottom_offset);
+ } else {
+ infer(pps_conf_win_left_offset, 0);
+ infer(pps_conf_win_right_offset, 0);
+ infer(pps_conf_win_top_offset, 0);
+ infer(pps_conf_win_bottom_offset, 0);
+ }
+
+ }
+
+ flag(pps_scaling_window_explicit_signalling_flag);
+ if (!sps->sps_ref_pic_resampling_enabled_flag &&
current->pps_scaling_window_explicit_signalling_flag) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid data:
sps_ref_pic_resampling_enabled_flag is false, but
pps_scaling_window_explicit_signalling_flag is true.\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (current->pps_scaling_window_explicit_signalling_flag) {
+ se(pps_scaling_win_left_offset, -current->pps_pic_width_in_luma_samples *
15 / sub_width_c, current->pps_pic_width_in_luma_samples / sub_width_c);
+ se(pps_scaling_win_right_offset, -current->pps_pic_width_in_luma_samples
* 15 / sub_width_c, current->pps_pic_width_in_luma_samples / sub_width_c);
+ se(pps_scaling_win_top_offset, -current->pps_pic_height_in_luma_samples *
15 / sub_height_c, current->pps_pic_height_in_luma_samples / sub_height_c);
+ se(pps_scaling_win_bottom_offset,
-current->pps_pic_height_in_luma_samples * 15 /sub_height_c,
current->pps_pic_height_in_luma_samples / sub_height_c);
+ } else {
+ infer(pps_scaling_win_left_offset, current->pps_conf_win_left_offset);
+ infer(pps_scaling_win_right_offset,
current->pps_conf_win_right_offset);
+ infer(pps_scaling_win_top_offset, current->pps_conf_win_top_offset);
+ infer(pps_scaling_win_bottom_offset,
current->pps_conf_win_bottom_offset);
+ }
+
+ flag(pps_output_flag_present_flag);
+ flag(pps_no_pic_partition_flag);
+ flag(pps_subpic_id_mapping_present_flag);
+
+ if(current->pps_subpic_id_mapping_present_flag ) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "pps_subpic_id_mapping_present_flag is
not supported.\n");
+ return AVERROR_PATCHWELCOME;
+ }
+
+ if(!current->pps_no_pic_partition_flag ) {
+ unsigned int exp_tile_width = 0, exp_tile_height = 0;
+ pic_width_in_ctbs_y = ceil(current->pps_pic_width_in_luma_samples /
(double)ctb_size_y);
+ pic_height_in_ctbs_y = ceil(current->pps_pic_height_in_luma_samples /
(double)ctb_size_y);
Don't use floating point. (int)ceil((double)a/b) == (a + b - 1) / b
+ u(2, pps_log2_ctu_size_minus5, sps->sps_log2_ctu_size_minus5,
sps->sps_log2_ctu_size_minus5);
+
+ ue(pps_num_exp_tile_columns_minus1, 0, FFMIN(pic_width_in_ctbs_y - 1,
H266_MAX_TILE_COLUMNS));
+ ue(pps_num_exp_tile_rows_minus1, 0, FFMIN(pic_height_in_ctbs_y - 1,
H266_MAX_TILE_ROWS));
+
+ for( i = 0; i <= current->pps_num_exp_tile_columns_minus1; i++ ) {
+ ues(pps_tile_column_width_minus1[i], 0, pic_width_in_ctbs_y - 1,
1, i);
+ exp_tile_width += current->pps_tile_column_width_minus1[i] + 1;
+ }
+ current->num_tile_columns =
get_num_tile(current->pps_tile_column_width_minus1,
current->pps_num_exp_tile_columns_minus1, pic_width_in_ctbs_y, exp_tile_width);
+
+ for( i = 0; i <= current->pps_num_exp_tile_rows_minus1; i++ ) {
+ ues(pps_tile_row_height_minus1[i], 0, pic_height_in_ctbs_y - 1, 1,
i);
+ exp_tile_height += current->pps_tile_row_height_minus1[i] + 1;
+ }
+ current->num_tile_rows =
get_num_tile(current->pps_tile_row_height_minus1,
current->pps_num_exp_tile_rows_minus1, pic_height_in_ctbs_y, exp_tile_height);
+
+ current->num_tiles_in_pic = current->num_tile_columns *
current->num_tile_rows;
+ if (current->num_tiles_in_pic > 1) {
+ flag(pps_loop_filter_across_tiles_enabled_flag);
+ flag(pps_rect_slice_flag);
+ } else {
+ infer(pps_loop_filter_across_tiles_enabled_flag, 0);
+ infer(pps_rect_slice_flag, 1);
+ }
+ if(current->pps_rect_slice_flag)
+ flag(pps_single_slice_per_subpic_flag);
+ else
+ infer(pps_single_slice_per_subpic_flag, 1);
+ if(current->pps_rect_slice_flag &&
!current->pps_single_slice_per_subpic_flag) {
+ ue(pps_num_slices_in_pic_minus1, 0, H266_MAX_SLICES);
+ if(current->pps_num_slices_in_pic_minus1 > 1 )
+ flag(pps_tile_idx_delta_present_flag);
+ else
+ infer(pps_tile_idx_delta_present_flag, 0);
+ return AVERROR_PATCHWELCOME;
+ }
+ if( !current->pps_rect_slice_flag ||
current->pps_single_slice_per_subpic_flag || current->pps_num_slices_in_pic_minus1
> 0 )
+ flag(pps_loop_filter_across_slices_enabled_flag);
+ else
+ infer(pps_loop_filter_across_slices_enabled_flag, 0);
+ } else {
+ infer(pps_num_exp_tile_columns_minus1, 0);
+ infer(pps_num_exp_tile_rows_minus1, 0);
+ infer(num_tile_columns, 1);
+ infer(num_tile_rows, 1);
+ infer(num_tiles_in_pic, 1);
+ }
+ flag(pps_cabac_init_present_flag);
+ for( i = 0; i < 2; i++ )
+ ues(pps_num_ref_idx_default_active_minus1[i], 0, 14, 1, i);
+ flag(pps_rpl1_idx_present_flag);
+ flag(pps_weighted_pred_flag);
+ flag(pps_weighted_bipred_flag);
+ flag(pps_ref_wraparound_enabled_flag);
+ if(current->pps_ref_wraparound_enabled_flag)
+ ue(pps_pic_width_minus_wraparound_offset, 0,
(current->pps_pic_width_in_luma_samples / min_cb_size_y) - (ctb_size_y /
min_cb_size_y) - 2);
+
+ se(pps_init_qp_minus26, -(26 + sps->qp_bd_offset), 37);
+ flag(pps_cu_qp_delta_enabled_flag);
+ flag(pps_chroma_tool_offsets_present_flag);
+ if(current->pps_chroma_tool_offsets_present_flag) {
+ se(pps_cb_qp_offset, -12, 12);
+ se(pps_cr_qp_offset, -12, 12);
+ flag(pps_joint_cbcr_qp_offset_present_flag);
+ if (current->pps_joint_cbcr_qp_offset_present_flag)
+ se(pps_joint_cbcr_qp_offset_value, -12, 12);
+ else
+ infer(pps_joint_cbcr_qp_offset_value, 0);
+ flag(pps_slice_chroma_qp_offsets_present_flag);
+ flag(pps_cu_chroma_qp_offset_list_enabled_flag);
+ if (current->pps_cu_chroma_qp_offset_list_enabled_flag) {
+ return AVERROR_PATCHWELCOME;
+ }
+ } else {
+ infer(pps_cb_qp_offset, 0);
+ infer(pps_cr_qp_offset, 0);
+ infer(pps_joint_cbcr_qp_offset_present_flag, 0);
+ infer(pps_joint_cbcr_qp_offset_value, 0);
+ infer(pps_slice_chroma_qp_offsets_present_flag, 0);
+ infer(pps_cu_chroma_qp_offset_list_enabled_flag, 0);
+ }
+ flag(pps_deblocking_filter_control_present_flag);
+ if (current->pps_deblocking_filter_control_present_flag) {
+ return AVERROR_PATCHWELCOME;
+ }
+ if(!current->pps_no_pic_partition_flag) {
+ return AVERROR_PATCHWELCOME;
+ }
+ flag(pps_picture_header_extension_present_flag);
+ flag(pps_slice_header_extension_present_flag);
+ flag(pps_extension_flag);
+ if(current->pps_extension_flag) {
+ return AVERROR_PATCHWELCOME;
+ }
+ CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
+ return 0;
+}
+
+static int FUNC(aud)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawAUD *current)
+{
+ int err;
+
+ HEADER("Access Unit Delimiter");
+
+ CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header,
HEVC_NAL_AUD));
+
+ flag(aud_irap_or_gdr_flag);
+ ub(3, aud_pic_type);
Range is 0 .. 2.
+
+ CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
+ return 0;
+}
+
+static int FUNC(picture_header)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawPH *current)
+{
+ CodedBitstreamH266Context *h266 = ctx->priv_data;
+ const H266RawSPS *sps;
+ const H266RawPPS *pps;
+ int err, i;
+ unsigned int ctb_log2_size_y, min_cb_log2_size_y,
+ min_qt_log2_size_intra_y, min_qt_log2_size_inter_y;
+
+ flag(ph_gdr_or_irap_pic_flag);
+ flag(ph_non_ref_pic_flag);
+ if(current->ph_gdr_or_irap_pic_flag)
+ flag(ph_gdr_pic_flag);
+ else
+ infer(ph_gdr_pic_flag, 0);
+ flag(ph_inter_slice_allowed_flag);
+ if (current->ph_inter_slice_allowed_flag)
+ flag(ph_intra_slice_allowed_flag);
+ else
+ infer(ph_intra_slice_allowed_flag, 1);
+ ue(ph_pic_parameter_set_id, 0, 63);
H266_MAX_PPS_COUNT - 1
+ pps = h266->pps[current->ph_pic_parameter_set_id];
+ if (!pps) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "PPS id %d not available.\n",
+ pps->pps_seq_parameter_set_id);
+ return AVERROR_INVALIDDATA;
+ }
+ sps = h266->sps[pps->pps_seq_parameter_set_id];
+ if (!pps) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "sps id %d not available.\n",
+ pps->pps_seq_parameter_set_id);
+ return AVERROR_INVALIDDATA;
+ }
+ h266->active_sps = sps;
+ h266->active_pps = pps;
+
+ ub(sps->sps_log2_max_pic_order_cnt_lsb_minus4 + 4, ph_pic_order_cnt_lsb);
+ if(current->ph_gdr_pic_flag)
+ ub(sps->sps_log2_max_pic_order_cnt_lsb_minus4 + 4,
ph_recovery_poc_cnt);
+
+ ...
+
+ if (pps->pps_qp_delta_info_in_ph_flag)
+ se(ph_qp_delta, -sps->qp_bd_offset - (26 + pps->pps_init_qp_minus26), 63
- (26 + pps->pps_init_qp_minus26));
+
+ if (sps->sps_joint_cbcr_enabled_flag)
+ flag(ph_joint_cbcr_sign_flag);
+ else
+ infer(ph_joint_cbcr_sign_flag, 0);
+ if (sps->sps_sao_enabled_flag && pps->pps_sao_info_in_ph_flag ) {
+ flag(ph_sao_luma_enabled_flag);
+ if (sps->sps_chroma_format_idc)
+ flag(ph_sao_chroma_enabled_flag);
+ else
+ infer(ph_sao_chroma_enabled_flag, 0);
+ } else {
+ infer(ph_sao_luma_enabled_flag, 0);
+ infer(ph_sao_chroma_enabled_flag, 0);
+ }
+
+ if(pps->pps_dbf_info_in_ph_flag) {
+ return AVERROR_PATCHWELCOME;
+ }
+ if(pps->pps_picture_header_extension_present_flag) {
+ return AVERROR_PATCHWELCOME;
+ }
+ h266->active_ph = current;
+ return 0;
+}
+
+static int FUNC(slice_header)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawSliceHeader *current)
+{
+ CodedBitstreamH266Context *h266 = ctx->priv_data;
+ const H266RawSPS *sps;
+ const H266RawPPS *pps;
+ const H266RawPH *ph;
+ const H266RefPicLists* ref_pic_lists;
+ int err, i;
+ uint8_t nal_unit_type;
+
+ HEADER("Slice Header");
+
+ CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, -1));
+
+ flag(sh_picture_header_in_slice_header_flag);
+ if (current->sh_picture_header_in_slice_header_flag){
+ CHECK(FUNC(picture_header)(ctx, rw, &h266->ph));
That's not going to work. The picture header needs to be a substructure of
slice header to regenerate correctly.
To fill in other slices, a copy might be needed. I'm not sure what the best
way of doing that is - maybe the other slices should fill their own picture
header with the original one as if inferred?
+ }
+ sps = h266->active_sps;
+ pps = h266->active_pps;
+ ph = &h266->ph;
+
+ if (!sps || !pps) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "no sps(%p) or pps(%p).\n", sps,
pps);
+ return AVERROR_INVALIDDATA;
+ }
+
+ if(sps->sps_subpic_info_present_flag)
+ ub(sps->sps_subpic_id_len_minus1 + 1, sh_subpic_id);
+ if (pps->pps_rect_slice_flag)
+ return AVERROR_PATCHWELCOME;
+ if((!pps->pps_rect_slice_flag && pps->num_tiles_in_pic > 1)) {
+ unsigned int bits, max;
+ if (!pps->pps_rect_slice_flag) {
+ bits = ceil(log2(pps->num_tiles_in_pic));
Floating point.
+ max = pps->num_tiles_in_pic - 1;
+ } else {
+ return AVERROR_PATCHWELCOME;
+ }
+ u(bits, sh_slice_address, 0, max);
+ } else {
+ infer(sh_slice_address, 0);
+ }
+
+ ...
+ if(pps->pps_slice_header_extension_present_flag) {
+ return AVERROR_PATCHWELCOME;
+ }
+ if(sps->sps_entry_point_offsets_present_flag) {
+ unsigned int num_entry_points = 0;
+ if (pps->pps_rect_slice_flag) {
+ return AVERROR_PATCHWELCOME;
+ } else {
+ unsigned int tile_idx;
+ for (tile_idx = current->sh_slice_address; tile_idx <=
current->sh_slice_address + current->sh_num_tiles_in_slice_minus1; tile_idx++) {
+ unsigned int tile_y, height;
+ tile_y = tile_idx / pps->num_tile_rows;
+ height = pps->pps_tile_row_height_minus1[FFMIN(tile_y,
pps->pps_num_exp_tile_rows_minus1)] + 1;
+ num_entry_points += (sps->sps_entropy_coding_sync_enabled_flag
? height : 1);
+ }
+ num_entry_points--;
+ }
+ infer(num_entry_point_offsets, num_entry_points);
+ if (num_entry_points > H266_MAX_ENTRY_POINT_OFFSETS) {
+ av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many entry points: "
+ "%"PRIu16".\n", current->num_entry_point_offsets);
+ return AVERROR_PATCHWELCOME;
+ }
+ if (num_entry_points > 0) {
+ ue(sh_entry_offset_len_minus1, 0, 31);
+ for (i = 0; i < num_entry_points; i++) {
+ ubs(current->sh_entry_offset_len_minus1,
sh_entry_point_offset_minus1[i], 1, i);
+ }
+ }
+ }
+ CHECK(FUNC(byte_alignment)(ctx, rw));
+
+ return 0;
+}
+
+static int FUNC(sei)(CodedBitstreamContext *ctx, RWContext *rw,
+ H266RawSEI *current, int prefix)
+{
+ return 0;
+}
- Mark
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